| /* |
| * Copyright 2015-present Open Networking Foundation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.onosproject.net.intent.impl.phase; |
| |
| import org.onosproject.net.intent.IntentData; |
| import org.onosproject.net.intent.impl.IntentProcessor; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.Optional; |
| |
| import static com.google.common.base.Preconditions.checkNotNull; |
| import static org.onosproject.net.intent.impl.phase.IntentProcessPhase.transferErrorCount; |
| |
| /** |
| * Represents a phase of requesting a withdraw of an intent. |
| */ |
| final class WithdrawRequest implements IntentProcessPhase { |
| |
| private static final Logger log = LoggerFactory.getLogger(WithdrawRequest.class); |
| |
| private final IntentProcessor processor; |
| private final IntentData data; |
| private final Optional<IntentData> stored; |
| |
| /** |
| * Creates a withdraw request phase. |
| * |
| * @param processor intent processor to be passed to intent process phases |
| * generated after this phase |
| * @param intentData intent data to be processed |
| * @param stored intent data stored in the store |
| */ |
| WithdrawRequest(IntentProcessor processor, IntentData intentData, Optional<IntentData> stored) { |
| this.processor = checkNotNull(processor); |
| this.data = checkNotNull(intentData); |
| this.stored = checkNotNull(stored); |
| } |
| |
| @Override |
| public Optional<IntentProcessPhase> execute() { |
| //TODO perhaps we want to validate that the pending and current are the |
| // same version i.e. they are the same |
| // Note: this call is not just the symmetric version of submit |
| |
| transferErrorCount(data, stored); |
| |
| if (!stored.isPresent() || stored.get().installables().isEmpty()) { |
| switch (data.request()) { |
| case INSTALL_REQ: |
| // illegal state? |
| log.warn("{} was requested to withdraw during installation?", data.intent()); |
| return Optional.of(new Failed(data)); |
| case WITHDRAW_REQ: |
| default: //TODO "default" case should not happen |
| return Optional.of(new Withdrawn(data)); |
| } |
| } |
| |
| return Optional.of(new Withdrawing(processor, new IntentData(data, stored.get().installables()))); |
| } |
| } |